MARS vs. NASA

Last updated Aug 4, 2026

MARS (Roundhill Space & Technology ETF) and NASA (Tema Space Innovators ETF) are both exchange-traded funds - MARS is a Technology Equities fund actively managed by Roundhill, while NASA is a Aerospace & Defense fund actively managed by Tema. Both are actively managed. Their 0.97 correlation means they have historically moved very closely together. Both charge a 0.75% expense ratio.

Performance

MARS vs. NASA - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Roundhill Space & Technology ETF (MARS) and Tema Space Innovators ETF (NASA). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

MARS

• 1D: 4.78%
• 1M: -21.72%
• 6M: —
• YTD: —
• 1Y: —
• 3Y*: —
• 5Y*: —
• 10Y*: —
• ALL TIME*: —

NASA

• 1D: 5.69%
• 1M: -21.69%
• 6M: —
• YTD: —
• 1Y: —
• 3Y*: —
• 5Y*: —
• 10Y*: —
• ALL TIME*: —

*Multi-year figures are annualized to reflect compound growth (CAGR)

Liquidity Comparison

Position	Avg. Volume Value (2W)	Avg. Volume Value (1M)	Avg. Volume Value (3M)
MARS Roundhill Space & Technology ETF	$836.37K	$1.07M	$6.11M
NASA Tema Space Innovators ETF	$29.16M	$43.00M	$221.75M

MARS vs. NASA - Yearly Performance Comparison

	2026 (YTD)
MARS Roundhill Space & Technology ETF	2.63%
NASA Tema Space Innovators ETF	-5.19%

Correlation

The correlation between MARS and NASA is 0.97 - they have historically moved very closely together. At this level, their price movements offset little of one another.

	Correlation
Correlation (All Time) Calculated using the full available price history since Mar 31, 2026	0.97

Return for Risk

MARS vs. NASA - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Roundhill Space & Technology ETF (MARS) and Tema Space Innovators ETF (NASA). Risk-adjusted metrics are performance indicators that assess an investment's returns in relation to its risk, enabling a more accurate comparison of different investment options.

Values are calculated on a 1-year rolling basis and updated daily. Risk-adjusted metrics are more stable over longer periods — use the period switch above to explore them.

Risk / return metrics aren't available yet — we need at least 12 months of trading data to calculate them.

Drawdowns

MARS vs. NASA - Drawdown Comparison

The maximum MARS drawdown since its inception was -50.89%, roughly equal to the maximum NASA drawdown of -50.97%. Use the drawdown chart below to compare losses from any high point for MARS and NASA.

Drawdown Indicators

	MARS	NASA	Difference
Max Drawdown Largest peak-to-trough decline	-50.89%	-50.97%	+0.08%
Current Drawdown Current decline from peak	-46.15%	-45.45%	-0.70%
Average Drawdown Average peak-to-trough decline	-16.50%	-18.19%	+1.69%

Volatility

Volatility by Period

	MARS	NASA	Difference
Volatility (1Y) Calculated over the trailing 1-year period	65.69%	65.96%	-0.27%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	65.69%	65.96%	-0.27%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	65.69%	65.96%	-0.27%

MARS vs. NASA - Expense Ratio Comparison

Both MARS and NASA have an expense ratio of 0.75%.

Dividends

MARS vs. NASA - Dividend Comparison

Neither MARS nor NASA has paid dividends to shareholders.

Tickers have no history of dividend payments

Frequently Asked Questions

Can I hold both MARS and NASA in my portfolio?

With a correlation of 0.97, MARS and NASA move almost identically. Holding both adds very little diversification - you're essentially doubling your position in the same market segment. Choosing one is usually more capital-efficient.

Which ETF is better, MARS or NASA?

Both ETFs have the same 0.75% expense ratio. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF is cheaper, MARS or NASA?

MARS and NASA have the same expense ratio: 0.75% per year.

Which ETF pays a higher dividend yield, MARS or NASA?

MARS and NASA have nearly identical dividend yields, around 0.00%.

What is the main difference between MARS and NASA?

MARS is categorized as Technology Equities, while NASA is Aerospace & Defense. They also come from different issuers: Roundhill and Tema.